196764665 has 16 divisors (see below), whose sum is σ = 251017920. Its totient is φ = 147643200.

The previous prime is 196764649. The next prime is 196764677. The reversal of 196764665 is 566467691.

It is not a de Polignac number, because 196764665 - 2⁴ = 196764649 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 659 + ... + 19848.

It is an arithmetic number, because the mean of its divisors is an integer number (15688620).

Almost surely, 2^196764665 is an apocalyptic number.

It is an amenable number.

196764665 is a deficient number, since it is larger than the sum of its proper divisors (54253255).

196764665 is a wasteful number, since it uses less digits than its factorization.

196764665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20632.

The product of its digits is 1632960, while the sum is 50.

The square root of 196764665 is about 14027.2828801589. The cubic root of 196764665 is about 581.6329970504.

The spelling of 196764665 in words is "one hundred ninety-six million, seven hundred sixty-four thousand, six hundred sixty-five".